Cranial bone plate



FIG. 1 is a top plan view showing my new design for a cranial bone plate, the bottom plan view being a mirror image thereof;

FIG. 2 is a right side elevation view of the cranial bone plate, the left side elevation view being a mirror image thereof; and,

FIG. 3 is a rear elevation view of the cranial bone plate, the front elevation view being a mirror image thereof. 

The ornamental design for a cranial bone plate, as shown and described. 